Home / 369,136-789,457

Finding the Third Proportional to 369,136 and 789,457

Calculator

Solution

The third proportional to 369,136 and 789,457 is: 1,688,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,136 : 789,457 = 789,457 : x
  2. Step 2: Convert to fraction form
    369,136/789,457 = 789,457/x
  3. Step 3: Cross multiply
    369,136x = 789,457 × 789,457
  4. Step 4: Simplify right side
    369,136x = 623,242,354,849
  5. Step 5: Solve for x
    x = 623,242,354,849/369,136
  6. Step 6: Final answer
    x = 1,688,381.40

Related Problems

Find third proportional to 184,568 and 394,728.50
Half scale
Find third proportional to 738,272 and 1,578,914
Double scale
Find third proportional to 369,138 and 789,461
Similar ratio
Find third proportional to 553,704 and 1,184,185.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.